At 105 degrees, today is one of the hottest days so far this year for us in the San Fernando Valley. Some of the things we have done to try to keep our home as cool as possible is to close all of the doors to rooms that we don’t use during the day – bedrooms, bathrooms, the office, the kitchen. That pretty much leaves the livingroom for the most part. In the living room we set up a portable 10,000BTU AC unit that I had sitting around with a “booster” box fan to help circulate the air better. We have to have the portable AC unit on full time, but it’s better than having the main unit on all day, which I’m sure would be the case otherwise. It’s not a perfect system, but it’s adequite and it keeps things comfortable. The biggest downside is the noise from the fans.